Nmap's changes have been moved from the NMAP_MODIFICATIONS file to the
Github repo at https://github.com/nmap/libdnet
The NMAP_MODIFICATIONS file instead will document only the changes made
to strip unused parts of the libdnet source prior to inclusion in Nmap.
ltmain.sh, and missing from subdirectories. Autoconf automatically looks
in the parent directory for these files. I had to copy the files
depcomp, ltmain.sh, and missing into the root of the source tree.
